Fluid actuator



A.' wicHA FLUID ACTUATOR Jan. ll', 1935.

Filed May 27, 1933 .'5 Sheets-Sheet 1 ATTORNEY A. WICHA FLUID ACTUATOR Jan; l, 1935.

Filed May 27; 1935 3 sheets-sheet 2 INVENTOR /QL o/S l/V/CHH ATTORNEY A. WICHA FLUID AGTUATORA Jan. l, 1935.

Filed May 27, 1953 5 Sheets-Sheet 3 INVENTOR /9/.0/5 I/VICHA BY m f xa ATTORNEY `151 `Ihave found that certain providedvvfith `desirable[mannen.1`

` Patented Jan. l, 1935 :Th-e present invention relates toyfluidlandii pump pchamber'fbetween' thasi'de Wallsibf,;-said 'uidactuating devices arid it `partiehularlyrelatesV ichambenvwhich Wall may'desirablybe fixed with' lsoLpumpsycompressors andthe like.a f t .y i respecttovthe Mcasingand `extend through a slot `Altlioughfthepresent inventionwill `be parti'c-` in the oscillating irnpeller. y l i t L5 `ularly,` described in connectionwithliquid'pumps Onffthe other `hand;` in guiding @the rrnziti'on of "15 it is to be understood that it may also be employed ,therimpellerit and.permitting i:he.`-` rolling loscillawith sphericalengines Aor other similary apparatus tionfiit has :been foundxdesirable to ,utilize'a plvl generally Whereaiiuid or liquid ispassedinto a otal element which bears bothixr the casing and l casingto kcause a shaft 'or amechanisrnto 1be t in I'the jimpeller,fanti"which,vvilllpermit relative loi La'ctiated,"Y the flowinguid `or liquid being .the rotatio'nalmovement andslidin'gfoft-thefimpeller 10 source oenergy around and :being forced into' in Lres'pectto thetlcasingfiandtit..lista particular the` spherical casingwunderisubstantialpressure objeritpi'of thepresentinventio to: improve this and/or removedtherefromundrsubatmospheric guidemembersfthatitvvillcooperate?'mostielli pressure or vacuum. f cientlyfwithlthe'impeller and-function innamost.

casings having interior 1 chambers of .partial A'furtherobjectfofthisinvention isltoprovide slgxlierical1 contour` and? including oscillating (im` a guid membe'rband to'l'soconst'ruct the imp'eller t pellers `may be employed in replacementof -orin tocooperatevvith saidguidelmember,thatthe p li'eu'of retiprocating rotary and otherpumpsA with amount/off` strain andfifr'iction willlb'e reducedto a `2o 'substantially increased efficiency and atlow cost, minimum, so that no cookingforbiasingreiect 20 With substantialfelininationtofrnanyxof .theI d is- Willensuetendingfto place excessive strains advantages'inherentin such rotaryandfreciproeither` uporl` thelimpeller orthefguide or tend* ca'tingpumps and .Withan enhancement of Imany ing tot prevent ready relative rolling orsliding Y of the advantageous .features associated theremovementgofs'a'id impeller-and guide 'member'.ff 25k with.f y:

lv Si y'i i i, .n t `1 Another furtheriobjec't cxfttheV present invention 2K5 Invone preferred form of 'mvinventionztheinfisto provide anguille hierber.: andtdflform an l terror"fcharnlcer` of inthe casingmay takerthe-lconl` impellerfmernberftolcooperateLtherewithfsothat. tour-fof a f spherical" section orfse'gment .with fa the oscillatngnovement of theliipellerrorlpump peripheral sphericalsurface` and iiat 'o1-conical 'actiratori;-vvillA takefplaceinsuchainanner asto `o side Walls. An oscillating circular impelle'r `is resultinithe -highes'tfiiegree-of efciency andsubt 30 containedl in said chamber; and .theoscllatlng stantially eliminate acceleratinand deceleration 1 t u t motion of this impelle'r is lrsausedtotake place of the impellerlma'ssesftluringfthe*operation of` wbothwhorizontally and vvertically `Within saidfcas` thel-pump-.ffu

ing` about a xedtcentre -by` a drive shaft which `-iinbther object l 35` extendstaxiallyfintp the casing; 3A gy berlfvvhichjwillyrnostefcintly utiliZe-itsjentije 35 lheldriveshaft ifs `provided `With anleccentric propellihgfsurfaceflforlmoving'ilidorliqilid -r'm 1 drivng'bearng forthe impeller causing Athis inlthe 'inletifto the foutlet of theipurp during th peller to undergo said oscillating .movement oscillating `movement thereofV` N 4 l i whereby iluid-or liquidis` continuouslydrawn in In"accornplishingftheseflast-ienti nedtobjects 40 through the`inlet,moved`through the casing, andA it has been 'foudlmostsatisfactory 'o ejected into the outletthrough suitable portsjin guide n iernperyvhihfnia `partait ofawrlative anijatlone side of the peripheral `spheriealsur- ,slidingiovemetgbothivvitligrspectto'thecasing `fg@ gandtheirnpellei'." This` gideelfementinione em`` bdilenttilaytake thefftrm f antritt-teuer key flnffpumps, compressors or other liquid 'actuat "45; in jdevicesfof this character, itis necessalrvfto` elementwhiwch is and en' edjh-*slots in l5` t provide xneans to separate the `inletandoutlet j the Wall-ofthe' casing".

ports-and prevent transferenceoffliquidorfluid?tu1fe"l` M therebetween exceptby the rollingt oscillating '^`I n0e re;1lbodn1felftofthe movementtf thefimpener and also to; provide mpellleglis Ccimpqsedfftwo, u u

rneansffonpreventinglthe rotation of the impeller, SectionsWhichfdvergetoward'thece Jer.""pointof while permitting it to` undergo `the `oscillating the "eccentric actuating bearingtheages "f Inovernent aforedf-lscribedy fcoicalstions;hvvverg-aefoblid w A i *In separating the inletfromthe *outlet it has trai-axesoftheecoentricla' ng azidatan-angl'e 1 been found -satisiactoryto `provide a'partitoning lessthah'lO" to"'a`ch other.` f l clearly from'the following detailed description,

v Y' with theimpellerin position therein. f f

' from the casing. v

'the line 2--2`of 'Fig'. 1."

Fig. 3 is a top longitudinal sectional,Viewf-c' f,v c

` the central ball element F is provided with `an oblique cylindrical central shaft element 31 and with inwardly converging frusto-conical side sur- Fig. 2 is,v a transverse front(4 sectional v iew upon the casing upon the lines 3-3 of Fig. 2.

Fig. 4 is a front Fig. 5 is a side section removed from-the casing.Y

Fig. 6 isa top view of the from the casing.

shaft.

Fig. 8 is a top diagrammatic sec/tional'uview" Figs. 10to 18' are top and frontfyiews ofthe impeller illustrating.' diagrammatically the, op-v erationof the device ofthe present invention. In Figs.1;.to 3 the-casing A isprovided with an interior. chamber B ofspherical contour,which chamberj; receives the. impeller 1` C. A The opposite `.sides of the casing C areprovided withthetubular-projections '.orv bosses "D. which* contain ,the

bearing sleeves ML rreceiving the shaft ,-;The shaft, E isy centrally provided withinv the:y casing withiaballelement F whichV` has an'obliqueslot vJ receivingtheiinpellerC.. p f .o

..Theguide1H,-to which this invention is kparticularly, directed, has bearings bothin the casingA andgin the impellerC and regulatesthexoscillat- Ming-:zl'olling movement of said impellerC. .The partitioningwall I separates the inlet and outlet ports and. preventsfluid A,or liquidv from being Itransferred..directly therebetween `except -by the o oscillating movement of theimpeller C. Q s y 'ci The interiorchamber B-of the casing A(see Figs.'1, 2 and 3). is of `a spherical contourhaving Asshownin Fiss; 1,;3 andlthbearing lsleeves l M are provided with the cylindrical bearing metal sidewalls f thelimpeller takt lform @atmete-conicalsections Whichtonverge towardthe center `A` point, 22 of the pump structure, vbut whichliareobliquely locatedso that their axesl are w ersect the peripheral spherical lsurf face 2Q to .forni inlet and outlet elongated opens ings therein preferablyof rectangular-shape.

VieW of the impeller removed viewY I of the rinipellerv,

impeller removed Y- l l v -A y l A The impellerC isy shown in the casing in Figs. Fig. 7 is a side view ofv the actuating `drive outlet ports` andthe im- 'less than. 189? toeachother. and are inclined 4toitlie horizontal axes of the shaft E. Y'

vThese vinlet-and outlet ports26 arated by the partitioning wall I which takes the form of an annular section and fits yat its ends in slots 29, in the conical side walls 21 (see Fig. 8).

As a result direct communication between the inlet and outlet ports 26 and 27 will be prevented andall kiiuid orv liquid will necessarily be vtransmitted through .the casing A in the direction indicated by the varrow 30 on Fig. 2.

As shown in Figs. 1 and 7, the oblique slot J face's32. whichk converge toward the center point 22 of the pump', which also is the center point of the ball element B.

1 and 2 and removed therefrom in Figs. 4, 5 and 6. The y impeller has two outwardly diverging truncated or frusto-conical propelling plate sections -.34, ,which inwardly 'converge' towards said center point22jandwhich lare provided at their outer extremities .with the peripheral spherical surfaces 20', which closelyjconiorm with the interiorperipheral,surface 20 of the interior chamber B.. i

It willbe noted that:the-"frusto-conical4 plate sections 34v (see particularly Figs. 4, 5 and 6) are providedwith oblique axes corresponding to the .axes of the wall sections 21 ofthe casing-, The

axes ofthe conical sections 34 are .oblique to the horizontal'axes ofthe impeller and to the axes of theeccentric'shaft element 31'y forming the base of the slot J in the ball F.

.The central section of the impeller is. formed by al spherical section 33'which atthe lower side vofthe impellermerges into the frusto-conical `section 34 and at the upper 'side ofk the impeller adjacent theinlet and outlet ports 26 andl 27 project 'substantially beyond the. side walls of the. impeller C. The central spherical impeller section 33 is provided' with the bearing insert 133 which yis of'bearing metal and contacts with the surfaces ...31' and 32 of `:the-slot y'J. It will be noted that the side walls 32 of the central irnpellersection 33 converge toward the central point 220i the impeller and that the axes of these converging -walls 32 coincide `with the central axes of the oblique shaft element 3l of the shaftE.,

. As indicated, the impeller'is Voitwo-pi'ece conf struction having anupper section 150 and a lower sectionv 151.,"whic`h yare-joined together at 152 by the iins 153 andthe bolts 154. Y The impeller Cbeing' of hollow construction, as indicated, is of relativelylight vweight and re,- sults -vn a `substantial decrease in the overall weight of installation. A y VThe portion "of `the impeller C adjacent, the inlet :and'o'utlet ports 26 and .27' is` provided with a transverseslot 3'7A r(see Figs. 4, 6 and 8) toreceive the partitioning wall I. The bottom 38 ofthe slot 37 is formed by the spherical impeller section33, which contacts iwith the correspondingly .shaped surface 38 of the partitioningwall Il', rrlhe fupperl'fside 39 of the partioning wall l'. closely contacts. with the spherical periphery 20 of the interior ychamber B of the casing -A. .A u The` sides 40 of the partitioningl wall 28 are closely adjacent tothe sides 40 of the slot in the impeller, the side wallsof said slot in the impeller diverging outwardly jas indicated so that it is possible for said impeller C to have a sub-A stantially Arotary movement in 'respect-` to said' tional contact.

.Theimpeuer c.` prei/idee: wane. beu lguide members which. controls i the oscillating"` nieve# ment'` thereof, preventing rotation with the 1 .ro= tation: oflthenshaft' aE; The ballguide H; which is shown in combination -with the' impeller C'and f slottedii insert l 35;: received fifn4^ a; recess 135 in the casing A andin a slotted element 36-rce`v`ed in areeesst13s-n-the-z impelierfeiefnemraf l As shown in Figs. 1c and 2,1 the` insert V35 inl the rec`essf135` in Athe `casing is providedwith aspher icalbearing `surface 923,59` over which the spherical edges 20K` of fthe fimpelle'r` lmovef-lfy Thevball guide I-I `is received f in the semifcircular Vgroove or slot 35 in said insert 35.` 1

The upperpartofthetballf sinto the corre-V spondinglsemi-icircular s lot or groove 36 fin-f the insert 362m the' recess; 136 ini the iirnpelle This recessie `formed between the side walls 4 and the lowertransversewa'll-interiorl o'sitioned be- `permit relative sliding and` -rota'tingjntrovement` oI/th'e impeller inl respect tojthe casing `As a o am Hej

impeller'C `tomfunder-gotlerrniscate movements of l varying amplitude. The amplitude of these- 1emzontal ax `of theA casingfA' andi ecreas'esfuntill such "movementl substantially resembles that' vof* a' straight line' adjacent the lupperfand lower parts of` th'edasing vand*gpartilai'ly vthef inlet `fand llt1et-I5rtS 2`6` 27 illdt'lp'ajlttining Avvllli'lg' 5 The operationof the-pump smost conveniently `i shown? from the diagrammaticvviews, Figs. loto" rnancrrv.` o :L Figs. nana-12am; respectively; side aricltrorl` 4s,

603' horizontal 'axis of ftheinipeller V(' and 5' the `obliqueI 18: Figi l0'illustrates``diagrarmatically` the:` turning of the i impeller and` Figs. @111l V'to "18 show top and front views of" the irrnaeller` in` eaclionei ofthe positions designated on Fig. 0, namely Ijflf.

,14 are .@Qrreepen'diegi Views, in Desitic'a 1;1'; :Figs-'l o `V and@ 16- are corresponding lviewsf vposition Y lli-1;* and ll'igsjl'l and 16 arecorrespondingviews i in position IV. `p

Frcma consideration offFigsglflfto--lS it appears wherritheshaftE- rotates;v4 thegim'peller C 'willV be" caused to sweep `backwardly 'and "forwardly both horizontally and vertically" across@ the `interior chamber B with thei"resultL that the impelle'r (31v will partake of'a lateral oscil1ation. i

. `At thesame time the" aesabout whichjthe"iin- 1y peller'C tends tol swing will alsotend torota'te about Athe xedcommonf enter 'pointfl22-of the:

axes of "the conical sections 34'w`ill" describe corri# cal surfaces converging-toward andi/raving {apices` at the center point-22`.f The verticallaxis will tend to swing in averticalplane coinciding with the separatingV wallfI f i l rAs .af-result -of this movement,"` fas *previously stated, all points on the peripheryloff the impeller C removed from the vertical `axis willtendto move along lemniscatei curves :which .become of greater. latitude as the point approaches the @horizontalx axis of the impeller.- VThese curves will-layin a,y spherical surface described upon i a `radius-.fequal. toi the distanceof the pointfrom .thejxce'nten pointh 22.1? Because, of this movement.'r subs-tantifalmace celeration; for. .deceleration forces'l will; not; `ib'e `in `g i l 1It is apparent curred upon` movement of the: mass4 of theimpel# ler C and the abrupt changes in acceleration characteristicfof the'movement oftherpistonof a reciprocatingpump are altogether eliminatedn i As indicated in Figs. 11 and 12 respectively, in

top andarfront views, 4the impeller C `will divide the interiorB of thefcasing A into two compartmentsy `and 61, taking the. lshape of spherical wedges', which: compartments are symmetrically disposedin: respect to' thec'enter point 22.V InfFigslland 12 the compartment 6l. occupies the upper portion of the casing A, while the chamber 60' occupies the lower portion of the casing A. In Fig. 13 the. compartment .60 occupiesV the right side of the `chamber B while the compartment 61 occupies the left side. of the chamber B. Inr Figs. 15 andjl the compartment loccupies thelowerfportionof the chamber B whilethe compartment 60 occupies the upper portion of thel g chamber'B and` in Fig. `1'1 the compartment-60 occupies the right side ofthe chamber B while the compartment 61` occupies theY left side` of the chamberBl` M i .s that i these Vwedge-like compart` ments 60 and 61,.due tothe oscillation movement ofthe impeller C, are causedto rotate continuously within the interior chamber B of the cas-` ingA.\`

`These compartments 60and 61 arefsuccessively' opened and'closed to the inlet 26 and to the out-f let 27.`so -thatxfluid or liquid which is received through the inlet 26 will be carried to the outlet 27. These compartments 60 and 61 will transfer liquid or. fluidi through the lower half ofthe chamf ber B, theinlet 26.130 the outlet 27 andwill be pre-` vented i fromltransferringuid or `liquid. reversely.l from the outlet to the inlet in the `upper half of.

` thefchamberlB by the wall I. l 1

`It will be noted injFigs; 11,.,1-3, 15 and 1 7 that the compartments 60 and `6l.mustimove through and will be` divided by thewall' I, said movement being'in the direction` of rotation of said shaftE.

I n Fig.11 the compartment 61 is bisected by the'- wall I, 4 whledn Figs. 13 andl'l both compartments are dividedby the wall I. In Fig.; loonly theV compartmento is `divided by the wall I. l

As the compartments 60 `andfil` rotate and pass. through thewallIf` they are substantially; continuouslyiA in communication with both the inlet 26 and:

the outlet 27. During the rotation of `the shaft E and oscillation Aof `the impeller C the` volume ofL the compartments'upon the outlet4 side of the wall will decrease, with the result that the liquid orl uid-.therein isdischarged through the outlet. At thef'same time the volume of thegchamber; on .thef inletA side 0f thel wall I increases with the resultI that `liquid issucked in through the inlet 26v to: fill the increasing Avolumeonthatside. j;

. Itj-.will `thus be apparentqthat each comparte;`

ment .60 and 61 asit passes through thewall 27j has inletiand outlet portionsof changing` volume separated by the' areas or lines V62 and; 63 .and

`the ,wall I; the; volume successively increasing :in

communication with" the i inlet and i decreasing in= communication with the outlet. L t

The: samef also occurs' in respect to Athe inlet port 26."f;=-;;

Infthei position shown in Figs.:.1l and 12 the contact..62 coincides with the connection of ythe endsofthewall with the wall 21 of-itheinterior B' sol that-:the compartment 60 in this position is not divided nor is' it decreasedinvolume by the volume ofthe wall. vTo reach this position the compartment 60 has been increased in volume while incommunication with the vinlet 26 on'the nletlside 'of the wall I, with Vthe result that .an amount of iiuid or liquid equal in amount to the maximum volume of the compartment 60 has been sucked or drawn thereinto.

- During this lmovementr the edges 201 and 200 of the impeller C will swing across the ports 26r andp27 respectively and control the communication between them'and the compartments 60 and VVV-'As the shaft E continues .to rotate and impeller Ctomove from the position of Figs; 11 and 12, to

, th'el position of Figs. 13 and 11i, namely from position I to position II, as shown on Fig. 10, the

"upper edge' 20 ofthe impeller C will tend to swing away from the Wall 21 ofthe compartment 61 :increasing the opening of the inlet and outlet ports 26 and 27 to the compartment 60.

As this is occurring, the compartment 60 is l being moved-:through the wall I so that it is inythe extreme right of the slot 36'.

creasing in volume in respect to the inlet port and vdecreasing'in volume with respect tothe outlet port 27.

11n the position of Fig. 15 the compartment 60 is substantially bisected by the wallI and it is open one-half "to the inlet 26 and one-half' to the outlet 27 with the volume vin communication with the inlet increasingwhile thevo'lume with the outlet is decreasing;Y In this positionthe inlet and outlet ports will have their maximum opening to the compartment 60.

In Figs. 17 and 18 the contact area 63 has reached the position IV indicated in Fig. 10. Inv this position, the filling ofthe compartment 60 AThe operation of the vother pumping compartment 61 is the same as has just been described,

except that all operations take place 180 later or4 earlier than in the case of compartment 6l.

It is, therefore, evident that as the shaft E rotates and the impellerC and the guide H oscillate, liquid or fluid will be continuously acted upon and moved from the inlet 26 to the outlet 27 by the compartments 60 and 61.

It will be noted that the guide H by fitting in the casing slot-35 andthe impeller slot 36', re-

, spectively, will permit bo-th lateral and vertical oscillation of the impeller C. In Figs. 13 and 17 the-guide I-I will be in the middle portions of the slots 35` and 36', which cross each otherv obliquely in these positions. In Fig. 11 the guide.

H willV be at the extreme left vof the slot 35 and In Fig. the guide H will beat the right end of the slot and atthe left end of the slot 36.

by, the. liquid being forced' through the pumpcasing from the inlet 26 to the outlet 27. At the same time .this` guide. H while permitting. the oscillating movement of the impeller C will prevent rotary movement and will control the oscil- 1:',

lating movement of theimpeller C. A11 of this stress restrainingthe impeller Cfrom rotating with the shaft E will betaken by pressure between the sides of the guide'I-I and sides of theslots 35and36.l ,7.

It will be noted that the pump will substantially meter the' ow. Except for a -small amount of leakage across the periphery 20 and across the areas of the linesy 62 and 63, the combined volume of the' chambers 60 Vand 61 will be transferred from the Vinlet to the outlet upon 'each complete revolution of the shaft E. y

The volume of these pump compartments may beconveniently calculatedrby subtracting the volume of the impeller C and the ball Fas'well as thefwall vI-from'the volume of the chamber B. The volume of these vcompartments. control the capacity of the pump and its delivery perv revolution and such volume is determined by the diameter of the chamber B and the width of such chamber. 'Ifhe angle of the-eccentric bearing slot J -of the shaftElwill vary with the width of the chamber BV so that the impeller will contact the outlet 27. Otherwise, there `would be a tendencyv for the impeller C, in the case of uncompressible liquids, -to create a vacuum on the inlet side andV to compress liquid on the outlet side, which would reduce the eiciencyof the pump.

The velocity of the movement of the body of thel impeller Cis substantially uniform at all p times, there being no minimumor maximum velocity,merely achange in direction. ,Y v

The axisof the eccentric slot shaft element 31,

the axisof the impeller C and the vertical andhorizontal axes of the interior Bof the; casing A, all intersect throughout movement at the common center point 22.-The impeller is preferably. so designed that its center of gravity coincidesv with ,this central point 22.

; In considering the operation of the uid actuating device of the present invention, which operation has been diagrammatically illustrated and described in connection with Figs. 10 to 18, it is to be. noted that theimpeller C in the course of.

its 'oscillating movementv causes a displacement o i iiuid both when it moves toward the wall ofV the casing 21fand-When it moves away `from the wall of the casing'21. yIn the former case the fluid is forced out of the casing through the outlet cris-'forced from one part of the interior chamber B of the casing A to another part of the interior chamber Bi of the casing A,.as indicated by the' arrows'30. z

:Since the entire side wall or side propelling surface 34 ofthe impeller C does not movetoward the side VwallY 21 of vtheuinterior chamber Vsimultaneouslyfbut rather is caused to move over said surface so that o-ne portion of the propelling face 1 34ofthe impeller is advancing toward the side: The guide H will slide readily through the slots 35 and 36 and will belubricated in its motion' 21.v of the-casing, whilev another portion of the propelling face34 of the impeller may be moving away from thessame side wallof :the impellerg-it is evident that` the oscillating movementl oithe impeller C- Will result-in moving fluid` c ircularly aroundwlthin the interior of thecrasingm It is` thus `evident that thedisplacementyaction of the oscillating impeller-C ofthepresent inven` tion differs substantially; from 4:the l displacement action of the `piston of a reciprocating pump in that Whereas the motion ofthe f reciprocatingfpis-t ton causes a linear movementl 0f yfllliil to 4the/@end of a cylinder, in the device of the.1:iresen-tfappli` cation on the ,otherl hand, the displacementaction of the impeller `causes a rotational movement ofV `the viiuid from the vinletto theQutIetaIQIlg ,17h61 i extending between the sidewallsf offfthechamber causes the oscillation action tOdraWiin iluidfrom the inlet and to ,force-huid out throughtheou-tlet.'`

The volume for containing fluidl orgyliquidiyithf in the `,casing of ther-device `always :besuby' `stantially constant` `1sinceit vwill bel equivalent to the volume of the interior chamber Brninusitlie Volume of the impeller.-Cand theyvolyume'pi the wall l As previously `described, the `Jirx'ipellere` C1 will divide the chamber B into two symmetrical y positioned pumpingwompartments1 i 601-"v and i 61 Whichalthoughthey are of substantially 4constraint volume1throughouteoperation,otrthe devioefX-f that the WallgI is `a fixediiuid ,i

cept forthe 'volumeA of: theWallI-Which may pro-` ject into ,them-)f they nevertheless will have portions-of Vvarying volumetric capacity the portieri in communication `With the inlet increasingrA- vvhile the volumein communication with the. outletfis A causing discharge of liquid throughr-thenoutlet of the .operation thatfthe shaftrnay'be rotated` ineither direction, andthat 'asaresult-of lsuch u pumps-v the actionof a reciprocating piston `pump in `which i there is a iixed `piston `and amor/able` cylinderuin i that in i the o present i invention the kldisplafccrilont.

`member `or Wall -I `moves` continuously ,through compartments, `one, after` the .other .Without the` abrupt! .reversals vas occur. Vin. ,allreciprocatmg "Itis .apparentlfromtlre foregoln descrip ny reverse rotationY the inlet 26 andfoutletlz' willnbe similarly reversed. The disclliar,n output of the deviceisiproporticnaltothesped otation'of, 'the shaft, While theheadordeigh ,Qffdelive" is independentiof `thespeedof rotation. n A4:Although the impellercis `shown eis-,forme df` o i i u tionofsaidlimpeller, the `axes of` said impelling two sections `which are bolted together@ i flanges 153 andthe bolts l54andl'fl'iolcasingisa so formed from two sections-connected at ,theflan-ges iocby the nous 101- marry .other @apposer peril:

struction might be employed, depending upon the j particular size and structureofthepurnplor-other! i y j rotatingtside; vs rallsj.` l. e paesi/ice,"

he `inlet y said casing. and,` said i cam member :intersecting :at `said center point., I

;The. impeller construction .is partioularly-om cient `inasmuch the entire' surface, l 34,'Wi111 at all timeswbe; effective :in propellingthewliquid. 4z

The portions 17o ,Seelig-lcifof1the,impellerovill cover "the inletand outlet ports 2 6jand-r2'1` 'at-all times during ,the oscillating movemeptand zwill prevent` bypassing oi, liquid between the) plates 34 oflthe-ximpeller.- Thsbspassipsof :liquidwill also loe prevepteclloy-itho :nsor flanges lofrvhoh serve A to carry` thevlbolt connections o. 154 of `.the impellerheads.` y i I 1 1 .The mattershown `and :described in 1 theipresent application but o not clainriedI herein-is covered myoopepdine' applications f.Seriell Nos-5656,63'l; `656,633,$656,639;656,64r0and-656,64r1,1i1edrespecf; tively-.Fehfl 1933:; 673,245n16d-M2lyt2'1; 1933 @m1696344 led Novi. 7,1933- `'Ihe-,:opendins ap,- plications ffifg;` `656,639 and 656,6?,11` ,-showgdif-r ferent types of impellingf pistons which may be i faces i `of the interior chambermwhich surface 1 OIF space seal `or `packing-is` `preflerabiy;` `utilizedfvvith What isiclairned iszw y. 1 ,r 1;. `In :a fluid. pumping device fa,c as 1ng hai/lng interior sidewallsand 4,a continuous spherical ,end Wall Comftng l Said Side Mausi .ign zmpellei @he periphery. of Which'oloeely conforms to. the Spherir @alzeridsvlell ndoeoillatesfvert'eelly sermone tally with a rolling -inovemeri betw i i welle` and about tpefoepterxpeint of pleasing, ah shaft passing into said cashing `.having `,an ieccen-` lf@ :Gam mmber actuating4 fid; mpell i@ ball guide iitting into, and sliding i within elongated slots, in said impeller and casing,- `preventingf-frota-` tion .of .said impeller While permitting` the; pscillating movement thereotrtheaxes of said shait,

,2. `In afluid l actuatingdeyce, ,la casing `having between, anoscillating impelleiyhavingisymmetri;

faces, positioned in said casing'an eoccentric'iliirifr-` ingshaftitherefor and .aballglldeol plyelltingrotaltion of the impeller said shaft uponrci-A tation causing a lateral and longitudinalA oscilla-1v surfaces being set atan anglto eaclfrlotherffand at `anfangle,tinthe axis of saideccentric driving shaft.` A

vided `wird adjacentiplet `and ,minet `ports a separating, wall, "an, `oscillating impeller closelyl fitting the 'walls of said casing ,anddividing,` `the GQi Ato prevent said impeller from rotating? with the Ysliaftfs'aid impellerV forming a"plurality of symmetricel sepaatedfcmpartments in 4said casing and upon` 'actuat ion by' said 'shaft serving sue/- cessfively to" open and close said compartments to said in letli and rthen te; the outlet whereby fluid will be `n fioved'throughsaid casing from said inlet te ysaid outietf-said-jimpe11er lbeing provided with 'annular impelling side'v surfaces formed of two opposite fru'ste-ciiical sections, the axes of which arefoblquevto the-'axis of the eccentric bearing, said impeller being arranged vsoy that it will be relatively wide adjacent the guide and relatively narrow diametrically 'opposite said guide.,v f

5-,3'In' a iluid Vpumping device', 'a casing having. inlet 'and outlet-ports a relatively xed'partitioning" wall'gthrbetweem interior transverse conical side walls, theazes of which are oblique to each othenan'd'rto the axis' of the casing, and a 'continuousspherical end #wall Connecting said side" wal1 s fan`,im"pfeller consisting of opposite fru'sto-conics'ilV i propelling sections Y the periphery of which impeller closelyv contacts the spherical endwall and which impeller )scillates laterally and longitudinallybetween :said siderwalls and about" thecenter' point of Asaid casing, a' "shaft passing'iritofsaid casing havingylnjl eccentric cam member actuatingsaid impeller and afguide iittinginr a slot in'saidimpeller preventing rotation ifqaidimrellervithai@ shaft-v. 6, In Iaf'fluid actuatingdevi a casinghaving inlet-)and'oitlet pcrta separatmglfwall between said perts, an oscillating impellerhaving conical sidesurfaes withV obliquelyr disposed laxes and a peripheral-spherical surface, an'eccentric driving shaft therefor *andg a guide for preventing rotationof the impeller withthe shaft, said im- 'pelle'r and said casing being provided with slots to receive said guide, and s aid shaft upon rotation causing, yaglateral and longitudinal oscillation of said impeller, said conicaljside surfaces converg-r ingr toward eachother adjacent the wall and divergingon 1th diametrically opposite side o-f the impellenf'jl f '7.*In a 'fluid ,actuatingjdevice a casing pro-A vided with spaced inlet and outlet ports, a transverse fixed ,separatingv wall between saidlports, anoscillatingimpeller closely iitting Aand contactingthewalls of sai d casing and dividing the interior of 'said casing into a plurality of separated cqmpartments, a drive `shaft having an eccentrie bearing in respect 'to isaid impeller and a ball guide preventing rotation but permitting osc illationlof said impeller about afixed center point, the oscillation of saidimpeller causing av substantiallycontinuous successive openingfincrease of volume, andclosing' of said l compartments in respect't'o said inlet port and 4then a successive opening;decrease-"in volume and'closing o`f saidgcompartments `in respect vto said-'outlet port, whereby fluid will b'e lcontinuously drawn in through'` said inlet and :injected throughsaid outlet, said impller and Vsaid casingfbe'ng provided-with elongated slots to receive 'saidball guida-the portion of said impeller removed from said wall being laterally extended so as to receive one of said slots.

8. In combination, a casing having an interior taking the form of a Yspherical section with' side walls, andy provided with an inlet port Aandan outlet port, a transverse fixedseparatingwall between said ports, an` oscillating impeller therein, ya shaft having a ball with an eccentric bearing slot 'for said impeller, said ball being Vpositioned in said casing,4 and a ball guide connected to said impeller to prevent said impeller from turning, said impellerforming a plurality of symmetrical -separated chambers in said lcasing and upon actuation by said shaftserving successively to open and close said chambers to said inletand then to the outlet whereby fluid will be moved through said casing from" said inlet to saidoutlet, said impeller being'provided with obliquely disposed conical propelling surfaces, the axes "of said conical propelling surfaces beingY positioned out of alignment with each other and out of alignment with the axis of said eccentric-bear- ,ing slot.

9. In a iiuid actuating apparatus, a casing with inlet'and outlet ports, Va transverse fixed separating wall between said ports, an impeller therein, means to impart an oscillating movement to said impeller about a fixed-'center point, and a ball guide engaging said impeller and said casing to prevent rotation thereof while it is being oscillated by said means, said impeller being provided with Van elongated slot to receive said ball and said casingA being also provided with an elongated slot crossing said elongated slot in said impeller and also receiving said ball, 'said ball sliding in both of said slots during operation cf said apparatus. ll0,y In a fluid actuator, a spherical enclosure, an impelling piston member extending across said@ enclosure, a iiuidreaction member also vextending across said enclosure, oblique holding means to hold said impelling piston member obliquely in respect to said fluid reaction member, whereby their opposing faces will diametrically oppositely approach and diverge from ,each other to form an annular-like Wedge-shaped iiuid receiving vand discharging compartment, shaft means to undergo rotational movement with saidv oblique holding means, inlet and outlet connections towithin said enclosure, guide means to prevent rotation of said piston member v and to cause said impelling piston member and said fluid reaction member to undergo a -relative lateral and longitudinal oscillating movement simultaneously with rotation of 'said oblique holding means and said shaft, whereby said wedge-shaped; fluid receiving and discharging compartment is' said cempartment being divided into two suby compartments, one of which increases in volume in communication with the inlet connection and the other of which decreases in volume in communication with the outlet connection during the transversely slotted impelling piston member extending across said `enclosure with? `v annular l frusto-conical propelling facestheap-ices ofwhich frusto-conical faces are `directed toward each` other, conical :side wallsextending across and closing the sidesof saidenclosure, a central obliquely `slotted ball `to hold said impellingipiston member obliquely in respect to said walls whereby said Walls and faces diametrically` oppositely approach anddiverge from each other to' form a plurality of annular-likewedge-shaped` fluid receivingand discharging compartmentsextending laterally between .said `side walls and` 'propelling facesand radially between said ball and said peripheral enclosure,` shaft meanstof `rotate said ball member rigidly` connectedrthereto, inlet and outlet ports intersecting ,saidj enclosure; guide means in' saidslot in saidzpiston member 'to pre-,v

`ventrotation of .said piston `member and to cause saidimpellingi piston member `to undergo a rela-f tive oscillating movement laterally in krespect to A and between said side Walls'upon rotation `of said ba'lllrxember :by 'said shaft, Awhereby said wedgeshaped fluidi receiving anddischargingfcompart` ments are rotatedlinto vand out of communication with said inlet and Aoutl'etconnecti'ons, said 'device'v being provided 'also witha transverse separating wall extending ibetween .said outletand inlet ports l passing through said transverselslot saidpiston sul member .and dividing eachjof said compartments duri-ng vits rotation .into 4:two subcompartments, one fof which increases jin 1 volume in connnunica` tion withthe inlet connection` and the other `of which decreases inyolume in communication with the 'outlet connection duringjthe rotationrof they` i compartments, theaxesyofj said annular ,frustolt corneal propelling faces, of said )obliqueslotted` ball, and `of' saidshaft' :means being-aser. fat subfstantial angles toeaclfifother. f f l i :112. In a' liquid pump, 'a spherical casingincludving aVK peripheral spherical enclosurefa disc-like transversely slotted .impelling pistonl member-,ex-i

tendingfacross 'saidenclosure `with annularrfrusto-,z

conical propelling faces the sides or` which frusto-y conical faces .arezdirected outwardly fromtfeach other, conical side Vwalls extending .across and closing -the :sidesfofsaid enclosure, a2V central obl'iqueiy slotted ballto holdsaid impellingfpiston` memberobliquely in respectv to said walls whereby said `walls :and faces diametrically oppositely` approach and diverge from each-other to `form a:

plurality of annular-like'wedge-:shaped 'fluid re-z f ceiving and dischargingcompartments extending rating wall extending between Ysaid outlet and` lateral-ly between said side walls jandzpropelling: f-aces 4and radially between'said ballandv said pe'- `ripheral enclosure, yshaft meanszto rotate said ball member rigidly connected thereto,;iniet and out-` let lports intersecting saidenclosure, guide means' infsaidl slot in said pistonl member to prevent ro= tation of said piston-member and tocause-said impelling pistonmeznbertto undergo a relative' oscillating movement laterally .inrespect to and between said :sidewalls upon rotation -of .said 4rball member "by :said shaft!whereby;` said `wedge-5 shaped nuid receiving and discharging -icompart-f ments arearotated into and out of cemmunica,,v tionrwith said-inlet and outletconnections, said4 device being provided also with atransverse sepainlet `ports passing through said transverse slot in :said piston member land dividing eac-h of said rotation of the compartments, the, axes of said frusto-conical faces passing through -the apices thereof, being set out of alignment so that they will .be at anglesto each other of substantially less than 180. 13. Inca fluid actuator, a spherical enclosure, an I impelling i piston member extending vacross said enclosure, a fluid reaction member also 'eX` tending Macross said enclosure, oblique holding means to hold said'impelling `piston member and said iiuid reaction member obliquely respect to eachother, whereby their opposing faces will diametrical'ly -oppositely approach and diverge from each other` to form an annular-like wedgeshapedA iiu'id receiving and Idischarging comparte ment, shaft means to undergo rotational `movementlwith saidoblique holding means, inlet and' outlet connections to within said enclosuraguide means to preventrotation of said piston member and l to Acause saidimpellingpiston member and saidiuid reaction member to undergo a relative lateral -and'flongitudinal oscillating movement. :simultaneously with rotation `of` said oblique holdingfmeansand lsaid shaft,` whereby said wedge-shaped'` fluidlreceiving and discharg-V ing compartment isrotated into andout lof com-` munication `with said;inlet Aand outlet connections@ said outlet Tand* inlet connections being separated from `eachnotherand saidf` compart- `ment beingdividedinto two sub-compartments, one =offwhich increases in volumeincommuni`` `cation with ythe inlet connection and the other of whichkdecreases in `volume in communication with f the-fV outlet vconnection ydu-ring the rotation of the compartment i said piston .member being provided'with a centraltransverse cylindrical face and with oppositely and symmetrically'poj sitionedoutwardly diverging frusto-coriical faces connectedby said cylindrical face, said frusto` conicalfaces being setupon thesame axis as theacentral fcylindricaltface and said cylindrical faeg'aridisaid frusto-conical faces cooperating witlfsaii .oblique holding means, the iiuid `pro peiling faces of said piston member consisting of twoexterior irusto-conicalfaces,` the axes of which are oblique to each other and to theaxis oflfsaid first-mentioned frusto-conical faces,`

14.1n a liquid pum-p, a `spherical casingincluding a peripheral spherical enclosure, a disclik'e transversely .slotted impelling piston member extending'across .said enclosure with annular truste-.conical .propelling faces; @the bases of which truste-conical faces are directed outward# ly from each' other, conical sidewalls extending across .andi closing the sidesofsaid enclosure, ak centrali obliquely slotted ball 5 to hold `said imments :extending laterally ,between said sidewalls and' propelling faces and radially between .said

bail andsaidperipheral enclosure, shaft vmeans to" `rota-te :said 'ball `member rigidly connected? thereto,` inlet` and outlet rports intersecting said enclosure, 'guide means ini` said slot in said piston member to prevent rotation of said piston mem-- ber and "to cause said impelling piston,me mberf to `.undergo a relative oscillating' `movement laterally in respect-to and betweensaidsidewalls upon` rotation of said :ball member by said shaft; whereby said wedge-shaped `fluid receiving and" discharging compartments are rotated `in'to andil outfnf [communication with said inlet vand outlet' l connectionaysaid device being provided also with a -transverse separating wall extending between said'outlet and inlet ports passing through said transverse slot in said piston member and dividingeach of said compartments during its rotation into two sub-,compartments one of which increasesinvolume in communication with the inlet connection and the other of which decreases in volume in communication with the outlet connection during the rotation of the compartments, said piston member being provided with a central cylindrical face and I with` symmetrically positioned outwardly f diverging frusto-conical faces `contacting with vthe face of said ball slot, said last-mentioned,frusto-conical faces being inside of said frusto-conical propelling faces and being set on different axes than said, frusto-conical propelling faces. y;

t15.1112 fluid actuator, a spherical enclosure,

an impelling piston member extendingvacross said enclosure, a fluid reaction memberIalso-extending across said enclosure, oblique holding means toghold said impelling piston member `and said fluid reactioni member` obliquely 'in respect to each other, whereby'their opposing faces will diametrically oppositely approach and A diverge from each other tofform-an annular-like wedgeshaped fluid receiving and-discharging vcompartment,y shaftmeans to undergo yrotational movement'with said oblique` holding means,v inlet. and outlet connections towithin said enclosure, guide means to prevent rotation of said piston member and to cause said impelling piston member and said fluid` reaction member to undergo a relative lateral and". longitudinal oscillating movement simultaneously Vwith rotation of lsaid* oblique holding means andvr said shaft, whereby'` said ,wedge-shaped fluid receiving and discharging compartment is rotated into and out' of. communication with said linletiand outlet connections; said outlet. and ,inlet connections being separated from each other by aseparating member andsaid compartment` being dividedjinto two sub-compartments, one of which increases in volume in communication with the 4inletconnection andv the -o-ther of which 'decreases in volume in' communication with the outlet connection during `the rotationof the compartment, the-maximum width of said compartment when it-passes,l through said separation between the inlet and `outlet connections being much greater than the maximum width yof said compartment when it passes through a diametrically opposite portion of said enclosure. 1 f f 16. In a liquid pump, a spherical casing includinga peripheral spherical enclosure,"a disc-like transversely slotted-impelling piston member extending across saidfenclosure with annular frusto-conical'propelling faces, the bases of which frusta-conical faces are directed outwardly from each otherconical side walls extending across andclosing the sides of said enclosure, a 'central obliquely slotted .ball to hold said impelling pistonmember obliquely in respect to said walls i whereby said walls and `faces diametrically oppositely approach and diverge from each other to form'A a plurality of 1 annular-like wedge-shaped fluid receiving and discharging compartments extending laterally between said ball and said outlet; portsintersecting said enclosure, guide means 'inqa second slot in vsaid ypiston member to: prevent rotation of said piston member and y toicause said impelling piston member to undergov arelativenoscillating movement laterally invv respect to and between said side walls upon rotation of said ball memberby said shaft, whereby said wedge-shaped fluid receiving and discharging compartments are rotated into and out of communication with said inlet, and outlet connections said-device being `provided also with a transverse separating Wall extending between said outlet and inlet ports `passing through said transverse. slot in said piston member and dividing each ,of saidcompartmentsduringits rotation'xinto two sub-compartments, one of which increases4 in volume in communication with the inlet connection and` the .'-other of which decreasesin volume in communication with the outlet connection during the rotation ofthe compartments,.the propellingfaces of said piston member and said conical `side walls being set in respect to each otherso that said 'compartments will have .a greater maximum width when passing throughfsaid enclosure and said separating wall than whenv theypass through said enclosure diametrically opposite to said separating wall.

17, In va liquid pump; a spherical casing including'v aperipheralspherical enclosure, a disc-like transversely slotted impelling piston member eX- tending Aacross said enclosure with annular frusto-conical propelling faces, the bases of which frustoeconical faces are' directed outwardly from eachother, conical side walls extending Aacross and closingthe sides ofsaid enclosure, a central obliquely slotted ball tov hold said impelling piston-member -obliquely in respectto said walls whereby: said walls and' faces diametrically oppositelyapprfoach anddiverge from each other to form a .plurality of annular-like wedge-shaped fluid receiving and discharging compartments extending laterally betweenfsaid side walls and propelling'faces and vradially between said ball and said pe'ripheralenclosure, shaft means torotate said 'ball' member rigidly vconnected thereto, inlet and outlet ports intersecting said enclosure, guide means'in'a second vslot in said' piston member to preventzrotation of saidpiston member and to cause saidimpelling pistonmember to undergo a relativeoscillating movement laterally inrespect 'to and between said sidewalls upon .rota-f, tion of said vball member by said shaft, whereby said wedge-shapedfluid receiving and discharging "compartments are rotated into and out of communicationy with said inlet and outlet connections, said device being provided also with a transverse separating wall extending between said outlet and inlet ports passingthrough said transverse slot infsaid ,piston member and dividing each of said compartments during its rotation into twolsub-compartm'ents, one of Vwhich .increases involume incommunication with the inlet connection and the other of which decreases in Volume in communication with the outlet connection during the rotation of the-compartments, the annular frusto-conical propelling faces con-A verging so as to be closely ,adjacent each other at the separating walll and diverging toward the oppositeside of the enclosure, so that-the'lateral width of the piston member'will be fsubstantially greater adjacent' the separating wall than at the diametrically'opposite portion of the enclosure; f Y i f 1'8. yIn a liquid pump, a spherical casing including a peripheral spherical enclosure, a disc-like transversely slotted impellirig piston member extending .across saidenclosure with annular frus-- to-conical propelling faces, thek bases of which frusto-conical faces are directed outwardly from each other, conical side walls extending across l, and closing the sides of said enclosure, a central n obliquely slotted ball to hold said impelling piston member obliquely in respect to said walls whereby said walls and faces diametrically oppositely approach and diverge `from each other to form a plurality of annular-like wedge-shaped fluid receiving and discharging compartments extending laterally between said side walls and propeiling faces and radially between said ball and said peripheral enclosure, shaft means to rotate said ball member rigidly connected thereto, inlet and outlet ports intersecting said enclosure, guide means in a second slot in said piston member to prevent rotation of said piston member and to said wedge-shaped uid receivingand discharge ing compartments are rotated into and out of communication with said, inlet and outlet connections, said device being provided also with a transverse separating wall extending between said outlet and inlet ports passing through said transverse slot in said piston member and dividing each of said compartments during its rotation into `'two sub-compartments, one of which increases in volume in communication with the f inlet connection and the other of which decreases `in volume in communication with the outletlconnection during the rotation of the compartments, said guide means taking the form of a small ball,

and said piston member and said spherical enl closure being both provided with elongated slots to receive said ball, said slots extending respectively transversely across the piston member and 

